SmashWiki, a wiki centered around the Super Smash Bros. series of games, has joined NIWA on October 29, 2010. The wiki, which was the fourth to join in the month, was formerly on the wiki farm Wikia. This trait was shared with other NIWA wikis Pikipedia and Pikcanon-NOT. However, unlike the other two, SmashWiki was formerly hosted elsewhere, with a merge having to be taken because of its host selling their website.

SmashWiki's joining makes NIWA now have 11 wikis. NIWA, which is short for Nintendo Independent Wiki Alliance, was founded by Bulbapedia, Super Mario Wiki, and ZeldaWiki. The 3 grew to six later, and now to the current 11. A new wiki will join next week.